121100515542141 has 16 divisors (see below), whose sum is σ = 172195400865600. Its totient is φ = 75437985132288.

The previous prime is 121100515542053. The next prime is 121100515542157. The reversal of 121100515542141 is 141245515001121.

121100515542141 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 121100515542141 - 2²⁹ = 121099978671229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100515542241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8541431446 + ... + 8541445623.

It is an arithmetic number, because the mean of its divisors is an integer number (10762212554100).

Almost surely, 2^{121100515542141} is an apocalyptic number.

It is an amenable number.

121100515542141 is a deficient number, since it is larger than the sum of its proper divisors (51094885323459).

121100515542141 is a wasteful number, since it uses less digits than its factorization.

121100515542141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17082877228.

The product of its (nonzero) digits is 8000, while the sum is 33.

The spelling of 121100515542141 in words is "one hundred twenty-one trillion, one hundred billion, five hundred fifteen million, five hundred forty-two thousand, one hundred forty-one".